(R)evolution of the E-grocery Industry: Strategic Implications

The use of the Internet in grocery retailing created the need for new business models, but it did not bring radical changes to consumer behaviour. Despite adopting revolutionary business models in their early days, online grocery firms did not manage to survive or reach profitability without using existing supermarket infrastructure and knowledge. Today, with most online grocers supplying small market niches, it is important to understand the reasons that made online grocers adopt a hybrid click and mortar strategy. Historical evidence from online grocery in the UK and the US suggests that firms had to adopt contingent strategies to face the difficulty of attracting consumers, sectorial entry barriers and financial targets.e-grocery, contingency, mismatch, revolution and evolution

Associations of physical activity with driving-related cognitive abilities in older drivers: an exploratory study

The purpose of this study was to examine the associations between physical activity and driving-related cognitive abilities of older drivers. Thirty-eight female and male drivers ages 61 to 81 years (M = 70.2, SD = 5.0) responded to the International Physical Activity Questionnaire and were assessed on a battery of neuropsychological tests, which included measures of visual attention, executive functioning, mental status, visuospatial ability, and memory. A higher amount of reported physical activity was significantly correlated with better scores on tests of visual processing speed and divided visual attention. Higher amounts of physical activity was significantly associated with a better composite score for visual attention, but its correlation with the composite score for executive functioning was not significant. These findings support the hypothesis that physical activity is associated with preservation of specific driving-related cognitive abilities of older adults

Domestic Impact of Internationalisation: The case of JM

The influence of internationalisation processes in the domestic activities of firms’ has not been considered as an important issue in existing models, because they tend to focus on a partial and restricted view of the firm. The purpose of this paper is to challenge that view by attempting a dynamic view of the firm is which primal importance is given to the relationship between international and domestic activities. The main research question is whether domestic activities can be significantly affected by international activities, namely knowledge transfer. Results confirm the dynamic approach adopted by firms however there are no definitive answers in terms of the domestic impact of internationalisation. Despite clear hints of evidence for the internationaldomestic relationship, there was no confirmation of this relationship at the financial level.

Herding and feedback trading: Evidence on their relationship at the macro level

The behavioural expressions of herding and feedback trading maintain properties that render their coexistence a possibility. Although their joint presence has been largely confirmed by empirical work in the Finance literature at the micro level (i.e. using micro data), the pursuit of this issue at the macro level (i.e. the level of the aggregate market) has remained largely unexplored. To that end, we jointly test for herding and feedback trading at the market level using data from the Portuguese market for the 1993-2005 period. Our results indicate the combined significant presence of herding and positive feedback trading for that period, with this significance exhibiting signs of clustering during the second half of the 1990s, which accommodated a series of boom-bust episodes for that market

(R)evolution of the e-grocery industry: Strategic implications

The use of the Internet in grocery retailing created the need for new business models, but it did not bring radical changes to consumer behaviour. Nevertheless, in the early days of egrocery, most managers overestimated the power of technology and adopted revolutionary solutions. Today, after 15 years, that approach proved to be misleading, as online grocery firms are supplying small market niches with the use of traditional infrastructures and knowledge. Historical evidence from the UK and the US suggests that in an environment of high uncertainty and complexity determined by product nature, consumer switching costs, entry barriers, market mismatch and low profit margins, contingent evolutionary approaches are more appropriat

The hierosolymitain origin of the catechetical rites in the armenian liturgy

O presente trabalho pretende demonstrar que a rubrica introdutória do ritual arménio do baptismo tem uma origem hierosolimitana. Para tanto comparo o texto original com os temas das leituras catequéticas que se encontram no Leccionário Arménio e com os assuntos tratados por São Cirilo de Jerusalém na suas Catequeses. Tal comparação permite descobrir que a rubrica baptismal é mais antiga do que os outros dois documentos. Esta conclusão está baseada, por um lado no esquema de catequeses que a rubrica propõe, o qual só pode ser anterior ao das leituras catequéticas e das correspondentes instruções cirilianas: a rubrica ordena-se segundo um equema de história de salvação enquanto que os outros documentos seguem a ordem do símbolo da fé; além de que outros pormenores supõem, na rubrica, uma menor evolução teológica. Por outro lado a organização litúrgica que tal rubrica supõe só pode ter existido nos fins do século III — princípios do IV. E tal organização era particular à igreja de Jerusalém. Daí a minha conclusão de que esta rubrica viu a luz do dia em Jerusalém donde teria transitado para a Arménia por ocasião das grandes traduções do século de ouro, o século V

Flexible Baseband Modulator Architecture for Multi-Waveform 5G Communications

The fifth-generation (5G) revolution represents more than a mere performance enhancement of previous generations: it will deeply transform the way humans and/or machines interact, enabling a heterogeneous expansion in the number of use cases and services. Crucial to the realization of this revolution is the design of hardware components characterized by high degrees of flexibility, versatility and resource/power efficiency. This chapter proposes a field-programmable gate array (FPGA)-oriented baseband processing architecture suitable for fast-changing communication environments such as 4G/5G waveform coexistence, noncontiguous carrier aggregation (CA) or centralized cloud radio access network (C-RAN) processing. The proposed architecture supports three 5G waveform candidates and is shown to be upgradable, resource-efficient and cost-effective. Through hardware virtualization, enabled by dynamic partial reconfiguration (DPR), the design space exploration of our architecture exceeds the hardware resources available on the Zynq xc7z020 device. Moreover, dynamic frequency scaling (DFS) enables the runtime adjustment of processing throughput and power reductions by up to 88%. The combined resource overhead for DPR and DFS is very low, and the reconfiguration latency stays two orders of magnitude below the control plane latency requirements proposed for 5G communications